Question
Assuming the population has an approximate normal distribution, if a sample size n = 21 has a sample mean = 40 with a sample
Assuming the population has an approximate normal distribution, if a sample size n = 21 has a sample mean = 40 with a sample standard deviation s = 7, find the margin of error at a 95% confidence level. Round the answer to two decimal places.
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Introduction To Probability And Statistics
Authors: William Mendenhall, Robert Beaver, Barbara Beaver
14th Edition
1133103758, 978-1133103752
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